112
4y
(2x+32)=17...apex :-)
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parallelogram
A parallelogram is any shape with two pairs of parallel sides and 4 sides in total. For a picture of a typical parallelogram, see the related links section below.
a and d
Assuming that in a parallelogram, angle A = 78 degrees angle B = 3y degrees and that angles A and B are adjacent interior angles of the parallelogram. 78 + 3y = 180 so 3y = 102 and so y = 102/3 = 34 degrees.
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